3220353217 has 2 divisors, whose sum is σ = 3220353218. Its totient is φ = 3220353216.

The previous prime is 3220353173. The next prime is 3220353221. The reversal of 3220353217 is 7123530223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2845582336 + 374770881 = 53344^2 + 19359^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220353217 - 2¹⁵ = 3220320449 is a prime.

It is not a weakly prime, because it can be changed into another prime (3220353277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610176608 + 1610176609.

It is an arithmetic number, because the mean of its divisors is an integer number (1610176609).

Almost surely, 2^3220353217 is an apocalyptic number.

It is an amenable number.

3220353217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220353217 is an equidigital number, since it uses as much as digits as its factorization.

3220353217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 3220353217 is about 56748.1560669596. The cubic root of 3220353217 is about 1476.7302444882.

The spelling of 3220353217 in words is "three billion, two hundred twenty million, three hundred fifty-three thousand, two hundred seventeen".